C#宣告一个变量

 int type = 22;
            Console.WriteLine(type);

            bool type1 = false;
            Console.WriteLine(type1);

            string type2 = "Insus.NET";
            Console.WriteLine(type2);

            double type3 = 4.8;
            Console.WriteLine(type3);

var type = 22;
            Console.WriteLine(type);

            var type1 = false;
            Console.WriteLine(type1);

            var type2 = "Insus.NET";
            Console.WriteLine(type2);

            var type3 = 4.8;
            Console.WriteLine(type3);

dynamic type;
            type = 22;
            Console.WriteLine(type);

            type = false;
            Console.WriteLine(type);

            type = "Insus.NET";
            Console.WriteLine(type);

            type = 4.8;
            Console.WriteLine(type);